Controversial new study challenges contemporary thinking about what the universe is made of.

Looking up in the main chamber at SNOLAB’s facility in the Vale Creighton nickel mine in Sudbury, Ont., a giant spherical neutrino sensor array the size of a 10 storey building is used to detect subatomic particles that pass through the earth.
(Handout)
November 28, 2017

A podcast on darkness: from why it makes us scared, to what kind of nightlife can thrive in the modern city and an update on the hunt for dark matter.

There are two broad ways to measure the expansion of the universe. One is based on the cosmic microwave background, shown here, along with our own galaxy viewed in microwave wavelengths.
ESA, HFI & LFI consortia (2010)
June 6, 2016